package kr.hkit.powerjava.chapter04;

import java.util.Scanner;

public class CircleArea {
	public static void main(String[] args) {
	double radius;
	Scanner input = new Scanner(System.in);
	
	System.out.println("반지름을 입력하세요");
	radius = input.nextDouble();
	System.out.println("원의 면적은 " + 3.14*radius*radius);
	}
}
